The Focusound sound is clear, directional, super penetrating, no attenuation within 20 meters, greatly improving the employer's advertising effect. Better integration with large screens of advertising, wider distribution, more concentrated and clearer volume, breaking the embarrassing situation that traditional digital signage can't be audible or audible. Expanding the scope of advertising, all pedestrians passing through the area in front of the directional digital signage can automatically receive advertising information, expand the scope of publicity, and increase the conversion rate of potential customers. Really environmental protection, find the balance between sound transmission and noise transmission. Trends, technology and technology are full of feelings of black technology, the theme of advertising is outstanding, and the impact is strong.